List questions from trigonometry

Published on 24 Apr 2026 - 6:33

60

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Inequality involving $|\cos(x)|$

Published on 15 Apr 2026 - 15:53

121

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Trigonometric rectangle

Published on 16 Apr 2026 - 15:06

5.2k

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Integrate : $\int \frac{x^2}{(x\cos x -\sin x)(x\sin x +\cos x)}dx$

Published on 17 Apr 2026 - 8:43

804

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The atan2 function and axis directions

Published on 14 Apr 2026 - 0:20

1.2k

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How to obtain the exact value of $\sin(3n)$?

Published on 11 Apr 2026 - 6:01

284

Views

finding an explicit formula from arctangent

Published on 11 Apr 2026 - 3:07

88

Views

Trigonometric equation - calculus or algebra

Published on 16 Apr 2026 - 15:06

834

Views

Find Area of 3 Sector Circle, Variable center point

Published on 24 Apr 2026 - 6:32

218

Views

How to find the limit $\lim_{x\to0}\frac{x\tan x-x\sin x}{x\sin^2x/\cos x}$

Published on 15 Apr 2026 - 2:07

672

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Inscribed circle: find distance to circumscribed circle

Published on 24 Apr 2026 - 7:58

113

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Definite integral

Published on 10 Apr 2026 - 16:57

1.5k

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Calculate $\tan9^{\circ}-\tan27^{\circ}-\tan63^{\circ}+\tan81^{\circ}$

Published on 13 Apr 2026 - 6:28

7.8k

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Is $ \sum\limits_{n=1}^\infty \frac{|\sin n|^n}n$ convergent？

Published on 11 Apr 2026 - 16:15

2.2k

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If $\alpha = \frac{2\pi}{7}$ then the find the value of $\tan\alpha .\tan2\alpha +\tan2\alpha \tan4\alpha +\tan4\alpha \tan\alpha.$

Published on 14 Apr 2026 - 19:13

List Question

Find how far runners travel on a circular track (trig)

Inequality involving $|\cos(x)|$

Trigonometric rectangle

Integrate : $\int \frac{x^2}{(x\cos x -\sin x)(x\sin x +\cos x)}dx$

The atan2 function and axis directions

How to obtain the exact value of $\sin(3n)$?

finding an explicit formula from arctangent

Trigonometric equation - calculus or algebra

Find Area of 3 Sector Circle, Variable center point

How to find the limit $\lim_{x\to0}\frac{x\tan x-x\sin x}{x\sin^2x/\cos x}$

Inscribed circle: find distance to circumscribed circle

Definite integral

Calculate $\tan9^{\circ}-\tan27^{\circ}-\tan63^{\circ}+\tan81^{\circ}$

Is $ \sum\limits_{n=1}^\infty \frac{|\sin n|^n}n$ convergent？

If $\alpha = \frac{2\pi}{7}$ then the find the value of $\tan\alpha .\tan2\alpha +\tan2\alpha \tan4\alpha +\tan4\alpha \tan\alpha.$

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